United Airlines
flight
UA 8439:
New York LaGuardia - Montreal-Trudeau
New York LaGuardia - Montreal-Trudeau
FLIGHT SCHEDULE
Direct Codeshare Flights:
United Airlines UA8439
Effective 2026-09-08 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada.
(AC 8645)
Duration: 1:29, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
United Airlines UA8439
Effective 2026-05-01 through 2026-06-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada.
(AC 8645)
Duration: 1:28, non-stop Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
United Airlines UA8439
Effective 2026-06-18 through 2026-06-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada.
(AC 737)
Duration: 1:25, non-stop Airbus A320 (320)
Direct Codeshare Flights:
United Airlines UA8439
Effective 2026-07-01 through 2026-07-31
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada.
(AC 8645)
Duration: 1:30, non-stop Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
United Airlines UA8439
Effective 2026-08-01 through 2026-09-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada.
(AC 737)
Duration: 1:25, non-stop Airbus A220-300 (223)
Direct Codeshare Flights:
United Airlines UA8439
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada.
(AC 8645)
Duration: 1:31, non-stop Embraer EMB 175 (E75)
- UA 8439 is an international flight departing from New York LaGuardia airport, United States (LGA) and arriving at Montreal-Trudeau airport, Canada (YUL).
- The flight distance is 324 miles, or 521 km.
- The timezone of both the departure and the arrival airports is UTC-5 . Current time at both airports is (loading...).
- For direct flights, the flight time varies between 1:25 and 1:31.